A Colombian mother came to Harris County, Texas during her third trimester of pregnancy. Her baby was born with Zika-linked microcephaly, a congenital birth defect where the head and brain are only partially developed. If just 100 of these babies are born in the state, it would cost taxpayers over a billion dollars during the lifetimes of the children. The cost for the 400 pregnant women who have tested positive for Zika in the U.S. to date, would total almost $4 billion.